Shiba's and Yuhto are common names in Japan, though. Munechika is not as common but it doesn't sound that unusual as a Japanese. Still, Dick is... dick.., o well
Are they? I had no idea. In high school, I was in a play by William Inge named "Come Back, Little Sheba," so the name says "cute dog" to me because the lady in the play keeps calling her little dog, Sheba, to come home, LOL but Japanese names are interesting and pretty to me even when I need time to get used to them.

I guess the strangest of her character's names is Dick Burnford, but she has some other unusual main character names like Munechika and Shiba. After I got used to it, Shiba sounded cute, but at first all I could think of was that it was a dog's name. Yuhto and Lennix seems to be a strange pairing of names. Lennix sounds so white bread.